The New Orleans Fire Department is on the scene of the collapse of two buildings in Treme, authorities said. Two shotgun doubles -- vacant since Hurricane Katrina -- collapsed in the 1300 block of Governor Nicholls Street shortly after 11 a.m. while construction workers were trying to raise one of them, a Fire Department spokesman said.

Four workers inside one of the buildings at the time of the collapse were taken to the hospital by EMS paramedics for treatment of minor injuries, said Susan Robinson, an EMS spokeswoman. The Fire Department said one of the workers suffered a broken arm and another injured his shoulder.

Two houses collapse in TremeDown in the Treme: Two houses under renovation collapse in the 1300 block of Gov. Nicholls Street in the Treme neighborhood, causing minor injuries to four workmen on Wednesday morning, April 10, 2013.

The buildings were owned by Providence Community Housing, who was in the process of renovating the structures for low-income housing.

Previously, Providence planned to move 33 historic homes out of the future site of the Veterans Affairs medical complex in Mid-City and into lots around the city to be rehabbed and sold.

But there were numerous problems with the program Providence was participating in, a plan run by the city in coordination with Builders of Hope. The homes sat exposed to the elements for up to six months, and at most a third of them could be salvaged, the group has said.

No other information is available at this time. Check back with NOLA.com for any updates on this story.